A common practice for detecting misspecification is to perform a “robustness test”, where the researcher examines how a regression coefficient of interest behaves when variables are added to the regression. Robustness of the regression coefficient is taken as evidence of structural validity. However, there are numerous pitfalls that can befall a researcher when performing such tests. For exampl...

The paper unravels the prevalent paradigm that differentiates between the management of a core competence and commodity processes. A case study is conducted to examine the strategic planning and management of a call center. The aim is to illustrate that a commodity process, such as handling customers’ complaints and enquiries, can be significantly beneficial to the business, if a clear value-cr...

considering the importance of the agriculture sector in iran, this study investigated factors affecting economic growth and development of the agriculture sector in iran over the period of 1967-2009 for short term and long term, using ardl model. the results showed that the ratios of public investment expenditure to the gdp for short-term and long term have positive impacts on the economic grow...

This contemporary world of economy driven by information and communication technology (ICT) has at its heart the dynamic force knowledge human capital development, pivotal to a standard market class, become very vital precious asset organisations. study examined effect Intellectual Capital Efficiency on Firm’s Value in Some Selected Listed Firms Nigerian Exchange Group. Data for were extracted ...

This paper investigates the changing relationship between employment and real output in the U.S. economy from 1948 to 2010 both at the aggregate level and at some major industry-grouping levels of disaggregation. Real output is conventionally measured as value added corrected for price inflation, but there are some industries in which no independent measure of value added is possible and existi...